添加實現 'com.google.firebase:firebase-analytics:17.2.2' 使實現 'com.android.support:appcompat-v7:28.0.0' 用紅色下划線

Question

After creating an application and a project on Firebase and downloading google-service.json and placing it in the app repository everything is fine until I try to add any firebase service SDK and after syncing I get the following line:

實現 'com.android.support:appcompat-v7:28.0.0' 帶有紅色下划線和以下錯誤

ERROR: Manifest merger failed: Attribute application @ appComponentFactory value = (android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] 
AndroidManifest.xml: 22: 18-91
is also present at [androidx.core: core: 1.0.0] AndroidManifest.xml: 22: 18-86 value = (androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools: replace = "android: appComponentFactory"' to <application> element at AndroidManifest.xml: 5: 5-19: 19 to override.

Answer 1

您必須將您的項目遷移到 androidX，請按照下列步驟操作：

Refactor -> Refactor this -> Migrate To AndroidX -> （將彈出一條消息詢問您是否要備份項目，由您決定）-> Do Refactor -> 項目將同步你對 go 很好。